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Finding the Fourth Proportional to 56,354.88, 84,530.40 and 16,910.40

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Solution

The fourth proportional to 56,354.88, 84,530.40 and 16,910.40 is: 25,365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,354.88 : 84,530.40 = 16,910.40 : x
  2. Step 2: Convert to fraction form
    56,354.88/84,530.40 = 16,910.40/x
  3. Step 3: Cross multiply
    56,354.88x = 84,530.40 × 16,910.40
  4. Step 4: Simplify right side
    56,354.88x = 1,429,442,876.16
  5. Step 5: Solve for x
    x = 1,429,442,876.16/56,354.88
  6. Step 6: Final answer
    x = 25,365.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.